The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Calder's bladderpod

Rogers Pass or klaus' or divide bladderpod

Habit Perennials; caudex simple or branched; densely pubescent throughout, trichomes (sessile or subsessile), rays distinct or slightly fused at base, furcate or bifurcate, (strongly umbonate, tuberculate, tubercles often relatively larger, fewer over center). Perennials; caudex simple; densely pubescent, trichomes (loosely spreading), 3–5-rayed, rays distinct, furcate (with exceptionally long branches).
Stems

simple or few to several from base, usually erect to spreading, sometimes prostrate, 0.5–2 dm.

simple from base, erect to decumbent, (slender), 0.6–1.5 dm.

Basal leaves

blade oblanceolate, 2–3 cm, margins entire.

blades obovate to deltate, 1.5–3(–4) cm, margins entire or outer one with 1 or 2 broad teeth.

Cauline leaves

(sessile or proximal shortly petiolate);

blade narrowly oblanceolate, 0.5–1.5 cm, margins entire.

blade oblanceolate to spatulate, 0.6–1.5 cm, margins entire.

Racemes

loose.

loose.

Flowers

sepals ovate to elliptic, (3–)4–5(–6) mm, (median pair often thickened apically, cucullate);

petals obovate, (6–)7–10 mm (nearly as wide, abruptly narrowed to claw, ca. 1 mm wide).

sepals (green-yellow, often tinged with purple), elliptic, 3–4.6 mm;

petals oblanceolate, 6–8 mm (claw expanded).

Fruiting pedicels

(erect to divaricate or ascending, sometimes curved), (5–)10–20(–40) mm, (stout).

(sigmoid), 5–9 mm.

Fruits

subglobose to ellipsoid, compressed (usually angustiseptate), to 8 mm; (valves not retaining seeds after dehiscence);

replum as wide as or wider than fruit;

ovules 10–14 per ovary;

style 1–2 mm.

(depressed), broadly obovate, compressed (angustiseptate), 2–4 mm, (apex slightly bilobed to nearly truncate);

valves densely pubescent, trichomes strongly ascending, spreading, long, (appearing fuzzy), pubescent inside;

ovules 4 per ovary;

style 3–4 mm, (pubescent or glabrous).

Seeds

plump.

flattened.

2n

= 20.

Physaria calderi

Physaria klausii

Phenology Flowering Jun–Aug. Flowering Jul.
Habitat Dry rocky summits, limestone flats and slopes, alpine knolls Open gravel slides, solifluction cross-stripes of shale rubble, barren shale-derived soil
Elevation 600-1500 m (2000-4900 ft) 1200-1900 m (3900-6200 ft)
Distribution
from FNA
AK; NT; YT
[BONAP county map]
from FNA
MT
[BONAP county map]
Discussion

Physaria calderi is known from the Ogilvie and Richardson mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 7, p. 629. FNA vol. 7, p. 647.
Parent taxa Brassicaceae > tribe Physarieae > Physaria Brassicaceae > tribe Physarieae > Physaria
Sibling taxa
P. acutifolia, P. alpestris, P. alpina, P. angustifolia, P. arctica, P. arenosa, P. argyraea, P. arizonica, P. aurea, P. bellii, P. brassicoides, P. calcicola, P. carinata, P. chambersii, P. cinerea, P. condensata, P. congesta, P. cordiformis, P. curvipes, P. densiflora, P. didymocarpa, P. dornii, P. douglasii, P. eburniflora, P. engelmannii, P. eriocarpa, P. fendleri, P. filiformis, P. floribunda, P. fremontii, P. garrettii, P. geyeri, P. globosa, P. gooddingii, P. gordonii, P. gracilis, P. grahamii, P. hemiphysaria, P. hitchcockii, P. humilis, P. integrifolia, P. intermedia, P. kingii, P. klausii, P. lata, P. lepidota, P. lesicii, P. lindheimeri, P. ludoviciana, P. macrocarpa, P. mcvaughiana, P. montana, P. multiceps, P. navajoensis, P. nelsonii, P. newberryi, P. obcordata, P. obdeltata, P. occidentalis, P. oregona, P. ovalifolia, P. pachyphylla, P. pallida, P. parviflora, P. parvula, P. pendula, P. pinetorum, P. prostrata, P. pruinosa, P. pulvinata, P. purpurea, P. pycnantha, P. rectipes, P. recurvata, P. reediana, P. rollinsii, P. saximontana, P. scrotiformis, P. sessilis, P. spatulata, P. subumbellata, P. tenella, P. thamnophila, P. tumulosa, P. valida, P. vicina, P. vitulifera
P. acutifolia, P. alpestris, P. alpina, P. angustifolia, P. arctica, P. arenosa, P. argyraea, P. arizonica, P. aurea, P. bellii, P. brassicoides, P. calcicola, P. calderi, P. carinata, P. chambersii, P. cinerea, P. condensata, P. congesta, P. cordiformis, P. curvipes, P. densiflora, P. didymocarpa, P. dornii, P. douglasii, P. eburniflora, P. engelmannii, P. eriocarpa, P. fendleri, P. filiformis, P. floribunda, P. fremontii, P. garrettii, P. geyeri, P. globosa, P. gooddingii, P. gordonii, P. gracilis, P. grahamii, P. hemiphysaria, P. hitchcockii, P. humilis, P. integrifolia, P. intermedia, P. kingii, P. lata, P. lepidota, P. lesicii, P. lindheimeri, P. ludoviciana, P. macrocarpa, P. mcvaughiana, P. montana, P. multiceps, P. navajoensis, P. nelsonii, P. newberryi, P. obcordata, P. obdeltata, P. occidentalis, P. oregona, P. ovalifolia, P. pachyphylla, P. pallida, P. parviflora, P. parvula, P. pendula, P. pinetorum, P. prostrata, P. pruinosa, P. pulvinata, P. purpurea, P. pycnantha, P. rectipes, P. recurvata, P. reediana, P. rollinsii, P. saximontana, P. scrotiformis, P. sessilis, P. spatulata, P. subumbellata, P. tenella, P. thamnophila, P. tumulosa, P. valida, P. vicina, P. vitulifera
Synonyms Lesquerella calderi, Lesquerella arctica subsp. calderi Lesquerella klausii
Name authority (G. A. Mulligan & A. E. Porsild) O’Kane & Al-Shehbaz: Novon 12: 322. (2002) (Rollins) O’Kane & Al-Shehbaz: Novon 12: 325. (2002)
Web links